Professor of Physics
Prof. Wu is interested in nonlinear dynamics of charged particle beams, coherent radiation sources, and the development of novel accelerators and light sources. One of his research focuses is to study the charged particle nonlinear dynamics using the modern techniques such as Lie Algebra, Differential Algebra, and Frequency Analysis. This direction of research will significantly further the understanding of the nonlinear phenomena in light source storage rings and collider rings, improve their performance, and provide guidance for developing next generation storage rings. The second area of research is to study and develop coherent radiation sources such as broad-band far infrared radiation from dipole magnets and coherent mm-wave radiation from a free-electron-laser (FEL). With this direction of research, he hopes to study the beam stability issues, in particular, the single bunch instabilities in the storage ring, develop diagnostics to monitor and improve the stability of the light source beams, and eventually develop novel means to overcome instabilities. These areas of research will provide foundations for developing a femto-second hard x-ray Compton back scattering radiation source driven by a mm-wave FEL - a next generation light source.
Studies of Nuclear Structure Using Neutrons and Charged Particles awarded by Department of Energy (Co-Principal Investigator). 1997 to 2018
International Workshop on the Next Generation Gamma-ray Sources awarded by Department of Energy (Co-Principal Investigator). 2015 to 2017
Cross-disciplinary Training in Medical Physics awarded by National Institutes of Health (Mentor). 2007 to 2013
Biomedical and Biological Research Applications of a Storage-Ring Free-Electron Laser awarded by Air Force Office of Scientific Research (Co-Principal Investigator). 2000 to 2008
Novel Research Opportunities Using the Duke Storage-Ring FEL awarded by Air Force Office of Scientific Research (Co-Principal Investigator). 2004 to 2006
3D Magnetic Field Effects on the Beam Dynamics in the Next Generation High Energy Physics Accelerator awarded by Department of Energy (Principal Investigator). 2001 to 2003
Li, W, Hao, H, Mikhailov, SF, Popov, V, Li, W-M, and Wu, YK. "Compensation for booster leakage field in the Duke storage ring." Chinese Physics C 41.1 (January 2017): 017002-017002. Full Text
Li, W, Hao, H, Mikhailov, SF, Xu, W, Li, J-Y, Li, W-M, and Wu, YK. "Study of magnetic hysteresis effects in a storage ring using precision tune measurement." Chinese Physics C 40.12 (December 2016): 127002-127002. Full Text
Yan, J, Hao, H, Li, JY, Mikhailov, SF, Popov, VG, Vinokurov, NA, Huang, S, Wu, J, Günster, S, and Wu, YK. "Storage ring two-color free-electron laser." Physical Review Accelerators and Beams 19.7 (July 2016). Full Text
Laskaris, G, Yan, X, Mueller, JM, Zimmerman, WR, Xiong, W, Ahmed, MW, Averett, T, Chu, P-H, Deltuva, A, Flower, C, Fonseca, AC, Gao, H, Golak, J, Heideman, JN, Karwowski, HJ, Meziane, M, Sauer, PU, Skibiński, R, Strakovsky, II, Weller, HR, Witała, H, and Wu, YK. "Measurement of the doubly-polarized reaction at 16.5 MeV and its implications for the GDH sum rule." Physics Letters B 750 (November 2015): 547-551. Full Text
Wu, YK, Yan, J, Hao, H, Li, JY, Mikhailov, SF, Popov, VG, Vinokurov, NA, Huang, S, and Wu, J. "Widely Tunable Two-Color Free-Electron Laser on a Storage Ring." Physical review letters 115.18 (October 26, 2015): 184801-. Full Text
Weller, HR, Ahmed, MW, and Wu, YK. "Nuclear Physics Research at the High Intensity Gamma-Ray Source (HIγS)." Nuclear Physics News 25.3 (July 3, 2015): 19-24. Full Text
Xu, W, Li, J-Y, Huang, S-L, Wu, WZ, Hao, H, Wang, P, and Wu, YK. "Conditioning of BPM pickup signals for operations of the Duke storage ring with a wide range of single-bunch current." Chinese Physics C 38.10 (October 2014): 107003-107003. Full Text
Huang, S, Li, JY, Jia, B, and Wu, YK. "Relative spectral response measurement of spectrometers using undulator radiation." Journal of Instrumentation 9.03 (March 1, 2014): P03002-P03002. Full Text
Laskaris, G, Ye, Q, Lalremruata, B, Ye, QJ, Ahmed, MW, Averett, T, Deltuva, A, Dutta, D, Fonseca, AC, Gao, H, Golak, J, Huang, M, Karwowski, HJ, Mueller, JM, Myers, LS, Peng, C, Perdue, BA, Qian, X, Sauer, PU, Skibiński, R, Stave, S, Tompkins, JR, Weller, HR, Witała, H, Wu, YK, Zhang, Y, and Zheng, W. "Spin-dependent cross sections from the three-body photodisintegration of at incident energies of 12.8 and 14.7 MeV." Physical Review C 89.2 (February 2014). Full Text
Wu, YK, Hao, H, Li, J, Mikhailov, S, Popov, V, Wu, WZ, Yan, J, Emamian, M, Busch, M, Faircloth, J, Swift, G, Wallace, P, and Wang, P. "Commissioning and operation of wiggler switchyard system for duke FEL and HIGS." IPAC 2013: Proceedings of the 4th International Particle Accelerator Conference (December 24, 2013): 267-269.
Li, W, Hao, H, Xu, W, Li, W, and Wu, YK. "Direct and high resolution beta-function measurements for storage ring lattice characterization." January 1, 2016.
Mikhailov, SF, Hao, H, Popov, VG, and Wu, YK. "Developing an improved pulsed mode operation for Duke storage ring based FEL." January 1, 2015.
Wallace, PW, Emamian, M, Hao, H, Mikhailov, SF, Popov, V, Wu, YK, and Li, J. "Extending ok5 wiggler operational limit at duke fel/higs facility." January 1, 2015.
Yan, J, Wu, YK, Mikhailov, S, Hao, H, Popov, V, Li, J, Wu, J, Vinokurov, NA, and Huang, S. "Experimental study of a two-color storage ring FEL ?." January 1, 2015.
Hao, H, Mikhailov, S, Popov, V, Wu, YK, and Li, J. "Characterizing betatron tune knobs at Duke storage ring." January 1, 2015.
Li, W, Li, J, Hao, H, Mikhailov, SF, Popov, V, and Wu, YK. "Measuring Duke storage ring lattice using tune based technique." January 1, 2015.
Wu, YK. "Light source and accelerator physics research program at Duke university." January 1, 2015.
MacDowell, AA, Feng, J, Demello, A, Doran, A, Duarte, R, Forest, E, Kelez, N, Marcus, MA, Miller, T, Padmore, HA, Raoux, S, Robin, D, Scholl, A, Schlueter, R, Schmid, P, Stöhr, J, Wan, W, Wei, DH, and Wu, Y. "Progress on PEEM3 - An aberration corrected X-ray photoemission electron microscope at the ALS." March 27, 2007. Full Text
Sun, C, Wu, YK, and IEEE, . "The feasibility study of measuring the polarization of a relativistic electron beam using a compton scattering gamma-ray source." 2007.
Kim, Y, Li, J, Wu, Y, and IEEE, . "Growth time of the longitudinal coupled bunch mode beam instability at the duke FEL facility." 2007.
HIGS: Free-Electron Laser Based Compton Gamma-Ray Source. An invited talk on December 14, 2015 at a workshop “International Meeting on Laser-Driven Radiation Sources for Nuclear Applications”. George Washington University. December 14, 2015
Next Generation Laser-Compton Gamma-ray Beam Facilities. An invited talk at “Applications of Nuclear Reactions with Gamma-rays and Surrogates for Neutrons” workshop. 4th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society ...